英语翻译IntroductionThepseudorange-baseddifferentialglobalpositioningsystem1DGPS2techniqueisextensivelyusedforgroundcontrolpoint1GCP2establishmentofmediumandhighresolutionsatelliteimagerybecausethistechniquecanprovide-保卡通问答

英语翻译IntroductionThepseudorange-baseddifferentialglobalpositioningsystem1DGPS2techniqueisextensivelyusedforgroundcontrolpoint1GCP2establishmentofmediumandhighresolutionsatelliteimagerybecausethistechniquecanprovide

更新时间： 2025-08-28 10:05:01

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英语翻译

Introduction

Thepseudorange-baseddifferentialglobalpositioningsystem

1DGPS2techniqueisextensivelyusedforgroundcontrolpoint

1GCP2establishmentofmediumandhighresolutionsatelliteimagery

becausethistechniquecanprovideaccuratepositioningresults

atthe1mlevel,providedthecorrectiondataageislessthan

10s,andtheuseriswithin50kmofthereferencestation1Parkinson

andEnge19962.RizosandSatirapod120012statedthatthe

DGPStechniquegenerallyprovidesanaccuracyofbetterthan3

minthehorizontalcomponentattwicethedistancerootmean

squareerror12.DRMS2.Itis,however,importanttonotethatthe

effectivenessoftherelativepositioningtechniqueislargelydependent

onthedistancebetweenthetworeceivers.Ifthedistance

betweenthereceiversincreases,theresidualerrorswillbecome

larger,andhencethequalityofthepositioningresultsdegrades.

ThisisalimitationoftheDGPStechnique.Inaddition,therequirement

ofoperatingatleasttwoGPSreceiverssimultaneously

duringdataacquisitionfurthercomplicatesthefieldprocedure

makingtheDGPStechniquelessattractiveformostapplications.

Therefore,developingaGPStechniquethatrequirestheoperation

ofasingleGPSreceiver,whilestillprovidingaccuratepositioning

resultssuitableforGCPestablishmentofmediumandhigh

resolutionsatelliteimagery,istheobjectiveofthisresearch.

WiththeavailabilityofpreciseGPSorbitsandsatelliteclock

corrections,theprecisepointpositioning1PPP2techniquehasrecently

beenproposedbytheJetPropulsionLaboratory1JPL2

1Zumbergeetal.19972.Sincethistechniquemainlyusesthecarrier

phasemeasurementsfrombothfrequencies1L1andL22,with

thepostmissioninformationintheestimationprocedure,itcan

produceveryhigh-precisionpositioningresults.Since1998JPL

hasbeenofferingtheautomatedGPSdataanalysisservicefor

processingsinglestat

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　　Introduction 　　Thepseudorange-baseddifferentialglobalpositioningsystem 　　1DGPS2techniqueisextensivelyusedforgroundcontrolpoint 　　1GCP2establishmentofmediumandhighresolutionsatelliteimagery 　　becausethistechniquecanprovideaccuratepositioningresults 　　atthe1mlevel,providedthecorrectiondataageislessthan 　　10s,andtheuseriswithin50kmofthereferencestation1Parkinson 　　andEnge19962.RizosandSatirapod120012statedthatthe 　　DGPStechniquegenerallyprovidesanaccuracyofbetterthan3 　　minthehorizontalcomponentattwicethedistancerootmean 　　squareerror12.DRMS2.Itis,however,importanttonotethatthe 　　effectivenessoftherelativepositioningtechniqueislargelydependent 　　onthedistancebetweenthetworeceivers.Ifthedistance 　　betweenthereceiversincreases,theresidualerrorswillbecome 　　larger,andhencethequalityofthepositioningresultsdegrades. 　　ThisisalimitationoftheDGPStechnique.Inadditi 　　导言　　该伪距为基础的差分全球定位系统　　差分全球定位系统技术广泛用于地面控制点　　控制点建立中期和高分辨率卫星图像　　因为这种技术可以提供精确的定位结果　　在1米的水平,提供了校正数据年龄小于　　10秒,用户是在50公里的参考站帕金森　　和1996年恩哥.Rizos和Satirapod指出,2001年　　差分全球定位系统技术提供了一个一般精度优于3 　　米的水平分量的两倍距离均方根　　方误差2.DRMS.然而,必须指出的是, 　　效力的相对定位技术在很大程度上取决于　　之间的距离上的两个接收器.如果距离　　接收器之间的增加,将成为残差　　较大,因此,高质量的定位结果降低. 　　这是一个限制的差分全球定位系统技术.在additi